package com.sky.mapper;

import com.sky.entity.ShoppingCart;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Update;

import java.util.List;

@Mapper
public interface ShoppingCartMapper {

    /**
     * 根据动态的三个字段获取购物车所有信息
     * @param shoppingCart
     * @return
     */
    List<ShoppingCart> list(ShoppingCart shoppingCart);

    /**
     * 插入购物车数据
     *
     * @param
     * @param
     */
    void insert(ShoppingCart shoppingCart);

    /**
     * 给表number字段增加1
     * @param shoppingCart
     */
    @Update("update shopping_cart set number=#{number} where id=#{id}")
    void update(ShoppingCart shoppingCart);

    @Delete("delete from  shopping_cart where user_id=#{userId}")
    void deleteByUserId(Long userId);

    void insertBatch(List<ShoppingCart> shoppingCartList);
}
